Last Chest Help

I need the last obsiden chest for my quest and if anyone can help me, help me please, everyone I know is too busy to help me. Obsiden chest location: Mushoo Acient Burial Grounds(I think)Name: Level 46 Tyler RavenShieldTimes(Moutain Time): 4:00-5:00 P.m. or 7:00-8:00 P.m. On 9-11-102:00- 2:30 P.m. or 4:00-5:00 P.m. or 7:00-8:00 P.m. On 9-12-10Realm:ImpIf you can help me between those times that would be great.I will be waiting in Jade Palace in Mushoo, well the place when you get away from the spiral chamber. Thank you, whoever helps me.